Updated Czech translation
Forgotten file in 44b1b7bef40f9e18a44f9a298c1f7107c42c2386.
Updated German translation.
Updated Romanian translation.

Refs: #2050.
Losslessly compress png images with https://github.com/subzey/zopfli-png and then with PNGGauntlet.
Compilation.txt: update GCC pack link
astyle: specify --close-templates
Make "Sharpen Complex 2" shader compatible with Pixel Shader 2.0.
Add the ability to close a media instead of pausing/stopping at the EOF.
Audio Switcher: Improve normalization process.

Use a much better regain strategy (similar to ffdshow's) and fix the regain rate being completely exponential rather than linear.

This commit fixes #1936.
Audio switcher: Use percentage instead of dB for the boost.

Internally a percentage was already used and it is much easier for the user to understand a boost expressed in percentage.
Audio Switcher: Add a setting to change the max normalization factor.

Use a max normalization factor of 4 by default instead of 10 to avoid huge volume variations.

Refs: #1936.
Output normalization factor just for tests.
Revert wrong push...

Sorry for that. :(
Updated German translation.
DTSAC3Source: fixed ac3 and eac3 header search. cosmetics.
CPPageExternalFilters: fix wrong popup point check

Casting UINT to int and then comparing it to 0 is just wrong
Profile: fix inability to open locked mpc-hc.ini

I previously misjudged c++ semantics pretty badly here
MpaDecFilter: fixed channel layouts for some HDMV LPCM.
update icl13.diff